KR20100127229A - Capodaster - Google Patents

Abstract

Capo tasto for fixing on a neck of a stringed musical instrument, comprising a first arm on which a string engaging region is arranged, a second arm on which a engaging region for a neck rear side is arranged, a slide bearing for holding the first arm for displacement on the second arm, the slide bearing having a displacement guide which is formed by at least one slot or at least one groove with an opening direction transverse to a displacement direction, at least one first contacting surface which is formed on the first arm, and at least one second contacting surface which is formed on the second arm, a movability apart of the first arm and the second arm, which increases the spacing between the string engaging region and the neck rear side engaging region being lockable by contact of the at least one first contacting surface and the at least one second contacting surface, and the opening direction being oriented at least approximately parallel to the first contacting surface and at least approximately parallel to the second contacting surface.

Description

Capo Tasto {CAPODASTER}

The present invention relates to a capo tasto for fixing to a neck of a string instrument, the capo tasto comprising: a first arm having a string engaging region arranged thereon; The joining region to the neck rear side includes a second arm arranged above.

Capotasto is used to shorten the vibration length of the strings of a stringed instrument. Capo Tasto is clamped around the neck of the stringed instrument between two frets and presses the strings on the frets. The string length between the bridge of stringed instruments and the bridge closest to the bridge remains available for performance.

Kapotasto is known from DE 10 2006 059 821 B3, which includes a string contact device, a tension band for fixing the string contact device to the neck, and a fixing device for fixing the tension band to the string contact device. One or more clips are arranged in the string contact device, whereby the capotasto can be hooked to the neck of the string instrument.

A capo tasto is known from EP 1 143 408 B1, which comprises a string joining arm, a clamping arm and a pivot connection for pivotally connecting the string joining arm and the clamping arm at a position along the arm. The pivot connection includes a releasable locking mechanism that selectively locks the relative pivot movement of the current engagement arm and the clamping arm and the pivot connection relative to the movement in the open direction, while allowing relative pivot movements in the closed direction.

Kapotasto is known from US Pat. No. 4,793,234, which includes a rigid arm of a structure extending transversely across the neck on the strings of a stringed instrument. The current joining portion is arranged on this arm. C-shaped portions, such as springs, are connected to the arm. Clamping forces can be applied by this part.

A capo tasto is known from US 2,604,805, which comprises two L-shaped portions connected by bolts on which wing nuts are screwed onto.

Kapotasto having a U-shaped frame is known from GB 2 141 860 A.

Other capotetas are known from US 6,573,440 B1.

From DE 358 280 a capo tasto for a similar musical instrument with a spring for pressing on the lute and string is known. Two semicircular legs with handles are provided, which are placed in a helical spring and when pressed together they lift the bridge connected to them away from the string. A roll is provided that slides in the neck of the instrument.

It is a primary object of the present invention to provide a capotasto of the kind mentioned at the outset, which is easily fixed to the neck of a stringed instrument and has advantageous features.

This object consists of the capotatas mentioned at the outset according to the invention, wherein a slide bearing is provided, by which the first arm is held for displacement on the second arm, the sliding bearing being displaced At least one first contact surface formed on the first arm and at least one formed on the second arm, the displacement guide having a displacement guide formed by at least one slot or at least one groove in an open direction across the direction A second contact surface of the first arm and the second arm toward each other, spaced between the current engaging region and the engaging region of the back of the neck, is provided with at least one first contact surface and at least one first Can be locked by contact of the two contact surfaces, the opening direction is oriented at least substantially parallel to the first contact surface and at least nearly parallel to the second contact surface .

Capotesto according to the present invention can be easily produced by minimizing the number of components required.

Capo tasto can also be operated with one hand. The mounting and dismounting can be done with one hand.

The contact surface is configured to be effective only when a pressing force by the neck is applied to the arm, ie when a fixation or prefixing occurs in the neck of the stringed instrument. Proportioning of the clamping pressure is made possible by this. Excessive clamping pressure on the string can cause the string to go out of tune. An optimized setting is possible with the solution according to the invention.

The sliding bearing has a displacement guide arranged on the second arm. Such a displacement guide can simply be constructed. The displacement guide is formed by at least one slot or at least one groove in the arm (eg the second arm). An element fixed to another arm (eg, the first arm) or another arm may be guided in at least one slot or at least one groove.

If the opening direction of at least one slot or at least one groove is parallel to the first contact surface and the second contact surface, in a simple design, any capturing is required for fixing (such as screws) when the capotasto is clamped to the neck. Mobility can simply be locked without other aids. This allows simple one hand operation. This minimizes the number of components required. In addition, the setting of the pressing force can also be easily performed since the mobility toward each other becomes possible.

The opening direction is the direction across the displacement direction. The opening direction is the insertion direction which faces the outer space and in which (at least one) pin element of the other arm is inserted into at least one slot or groove. The opening direction is at least nearly parallel to the string. It is also oriented transversely to the side of the corresponding arm.

The opening direction is a direction in which at least one slot or at least one groove is, in at least one side, not limited by the material of the arm on which the at least one slot or at least one groove is formed.

At least approximately parallel to the opening direction with respect to the first contact surface and the second contact surface is present at respective contact positions of the first contact surface and the second contact surface, in particular at each position of the first arm relative to the second arm.

In Kapotasto, known in the prior art, in which the first and second arms are purely pivotal to one another, a fundamental problem arises that the current binding area can no longer be optimally aligned once locked. The arm performs a circular motion due to the pivot bearing until the final clamping position is reached. In the solution according to the invention, the slide bearing allows the first arm to move linearly, which is laterally aligned, in particular at least approximately perpendicular to the string of the musical instrument. Uniform distribution of pressure in all strings can be achieved through this, and any errors due to incorrect installation of capotasto can be easily corrected.

With the solution according to the invention, the first arm or the second arm may in each case be a one part or a multi part configuration.

It is convenient to be configured such that the moveability is locked when the capotasto is clamped to the neck upon contacting the at least one first contact surface with the at least one second contact surface. The pressing force then acts, which locks the mobility of the first and second arms. However, if the user wants to increase the clamping force, he can continue to move the first arm toward the second arm.

The at least one first contact surface and the at least one second contact surface are conveniently configured to allow movement of the first and second arms towards each other in a direction opposite to the movable direction of the first and second arms. Thereby the clamping force can be set.

In particular, the displacement guide is a linear guide. It is sufficient that the first arm is linearly displaceable in the second arm.

It has proven convenient for the at least one second contact surface to lie at least nearly parallel to the displacement guide. Thereby the fixing position can be secured in a simple manner.

In a constructively simple embodiment, the first arm is held by one or more pin elements on the displacement guide. By means of one or more pin elements, inserted into the displacement guide, the displaceability on the second arm of the first arm can be effected in a simple manner. The one or more pin elements may be elements separate from the first arm and fixed above. It may be formed integrally with the arm. For example, it may be composed of a peg.

The longitudinal longitudinal direction of the at least one fin element is parallel to the opening direction of at least one groove or at least one slot. This longitudinal longitudinal direction is parallel to the first contact surface and the second contact surface.

In an advantageous embodiment, the slide bearing consists of a pivot slide bearing and the first arm is pivotable with respect to the second arm. This makes it easier to release the capo testo from the neck of the stringed instrument and to mount the capo testo up. Mounting on the neck is facilitated by the pivoting-apart of the first arm and the second arm, in particular one hand mounting. It is also easy to release.

In particular, the pivot axis of the pivot slide bearing is perpendicular to the displacement direction. Thus, the pivot slide bearing can be constructed in a simple manner. The pin element, which acts as a displacement guide for the first arm in the second arm, may serve as a shaft for the pivot bearing. The pivot axis is preferably parallel to the opening direction and consequently also parallel to the first contact surface and the second contact surface.

Advantageously, the pivot slide bearing has a shaft rotatable in the displacement guide and guided for displacement in the displacement guide. Therefore, the corresponding capo tasto can be produced at a minimal cost.

It is particularly advantageous for the displacement guide to be oriented at least nearly perpendicular to the string when the capotasto is mounted to the neck. As a result, a uniform pressure is applied to the strings. All strings are at least almost uniformly pressured as a result of the linearly movable portion and the portion of the first engagement of the first arm with the string engaging region to the string during clamping.

It is particularly advantageous that a pivotable rocker with the current joining area overly arranged on the first arm. In this case, the pivot bearing is in particular arranged in the center of the rocker. The clamping pressure of the string engaging region on the string is evenly distributed by the pivotable rocker.

The pressure distribution on the string is prevented from changing, which may cause some strings to be out of pitch and cause other strings to ring due to excessively low pressure. Thus, a larger pressure range or clamping range is also available to the user before the string is acoustically out of pitch. In addition, by providing a pivotable rocker, the capotasto according to the invention can be used universally. It is no longer necessary to individually adjust the clamping width for each instrument. Uniform distribution of clamping pressures makes it possible to use different fret lengths.

In Kapotasto known in the prior art, the basic problem arises that, as a result of the fastening of the contact immediately, the optimal arrangement of the current bonding area is no longer possible. With the solution according to the invention, due to the possibility of displacement of the first arm in the second arm, a linear movement of the first arm transversely oriented with respect to the chord, in particular at least approximately perpendicular to the chord, can be carried out. . If the capo tasto according to the invention is not mounted very accurately by the user, this error can be compensated by the pivotable rocker.

In particular, the pivot axis of the rocker is parallel to the pivot axis of the pivot slide bearing, whereby the first arm is fixed to the second arm. The optimized force distribution is as simple as this.

In one embodiment, the string bonding region is formed by an elastic material. Thereby a uniform distribution of the force is achieved in a simple manner.

It is particularly advantageous that the string bonding region is formed by the elastic pad. It is made, for example, in one piece. If the string has a curved neck, a uniform distribution of pressure on the string can be achieved.

It is particularly advantageous for the elastic pad to have a mating surface for the string that changes transverse to the direction of the string, and the effective mating surface is smaller for strings of larger diameter than for strings of smaller diameter. The effective engagement surface that the string engages with the elastic pad is obtained by multiplying the contact length of the elastic pad and the string by the diameter of the string. If the contact lengths on the elastic pads are the same, a larger effective engagement surface will be obtained for the larger diameter strings. Therefore, the string digs the pad more shallowly. Because of the corresponding different formations of the mating surfaces for the strings, which ensure that the contact lengths of the strings of different diameters differ from each other for joining at the mating surfaces, it is ensured that the effective mating surfaces of the different strings are at least nearly identical. For example, thicker strings (low pitch strings) cannot dig an elastic pad shallower than thinner strings. This in turn reduces the risk of thicker strings being deflected while playing stringed instruments.

In one convenient embodiment in terms of manufacturing techniques, the elastic pad has a triangular free space. This triangular free space provides a variable string engagement surface that increases in size in one direction. This direction is transverse to the longitudinal direction of the string. Thereby at least approximately the same effective string engagement surface can be provided for thicker strings and thinner strings.

The joining region is particularly advantageous in that the back of the neck is formed of an elastic pad. This avoids the danger caused by arranging the second arm behind the neck. It is therefore also possible to fix the capotatas in the neck in a simple manner. The pressure is applied to the elastic pad and compressed, and in this way, if the first arm is in a corresponding displacement position with respect to the second arm, one or more first contact surfaces and one or more second contact surfaces can be contacted to achieve a locked position. . The locked position can simply be released by the additional force exerted on the resilient pad so that it can again pivot relatively between the first and second arms.

In one constitutively convenient embodiment, the first arm has a channel shaped region with an upwardly extending side rim on which the string joining region is arranged. Therefore, the string joining area can be fixed, in particular pivotally fixed, to the first arm.

In particular, the rocker is pivotally fixed to the side rim extending upwards. In the side rim, for example, the pin element, which forms the outer shaft for the rocker, can be fixed.

It has proven convenient for the string joining region to extend above the front end of the first arm, ie with respect to the end of the string joining region closest to the second arm, the string joining region being longer than the first arm. Has a length. It has been found that a more uniform clamping pressure can be applied to the strings.

It is convenient for the spring mechanism to be arranged between the first arm and the second arm to exert a force to press and / or pivot the first arm away from the second arm. Thereby the capotasto according to the invention can be simply fixed to the neck and the fixation can be released in a simple manner. During fixation, the first arm and the second arm are fully open relative to each other and can be easily mounted. To release, a pushing-apart can be carried out by applying a corresponding force.

In particular, the spring mechanism is supported on the first arm and the second arm to apply a corresponding force.

It is particularly advantageous for the spring mechanism to have a spring region, in particular having a free end displaceable and supported above the second arm. Therefore, the spring action is not affected by the possibility of displacement of the second arm relative to the first arm. On the other hand, the possibility of displacement of the first arm in the second arm is ensured.

In a compact design, one or more spring mechanisms of the windings are arranged around the shaft of the pivot slide bearing.

It is convenient for the at least one contact surface to be formed by an outer contour region of the first arm, facing the second arm. This results in a compact structure. The contact surface is created by the corresponding formation of the contour.

For the same reason, it is advantageous for the at least one second contact surface to be formed by the contour region of the second arm, facing the first arm.

In addition, from the standpoint of manufacturing technology, it is advantageous that at least one first contact surface is formed integrally with the first arm. For the same reason, it is convenient for the at least one second contact surface to be formed integrally with the second arm. Therefore, no additional components need to be fixed for the formation of contact surfaces on the individual arms.

Conveniently, one arm is configured in the coupling area with the other arm in a fork shape, and opposing fork elements engage over the other arm. This allows another arm to be inserted in the intermediate region between the fork elements. This allows the two arms to be held together in a simple manner, and the contact surface for locking the fixed position can be implemented in a simple manner.

In particular, at least one contact surface for the other arm is formed in the intermediate region between the fork elements. Therefore, the capotasto according to the invention can be constructed in a compact manner and can be easily operated, in particular with one hand.

It is convenient if the one or more spring mechanisms are arranged and configured such that the securing position of the neck is released by applying pressure to the first arm in the direction of the engagement area at the back of the neck. In particular, this release possibility is possible by applying pressure near the front end of the first arm. The capo tasto can thus be released in a simple manner with one hand operation.

The following description of the preferred embodiments serves to explain the invention in detail in conjunction with the drawings.

The present invention has the effect of providing a capo tasto for fixing to the neck of a stringed instrument.

1 is a perspective view of one embodiment of a capo tasto according to the invention with a neck section of a stringed instrument;
FIG. 2 is a view like FIG. 1 in which a capotasuto is fixed to a neck; FIG.
3 shows a side view of the capotasto according to FIG. 1, with the hidden elements shown in broken lines;
FIG. 4 is a cross-sectional view (open capotasto) shown along line 4-4 according to FIG. 1.
FIG. 5 is a cross-sectional view (closed capotasto) shown along line 5-5 according to FIG. 2.
Fig. 6 is a sectional view of a further embodiment of capotasto in accordance with the present invention.
FIG. 7 is a cross-sectional view of the capota test according to FIG. 6, taken along line 7-7. FIG.

Capotasto is a device used to shorten the vibration length of the strings 10 of a string instrument such as a guitar, mandolin or banjo. Capotasto is arranged in the neck 14 of the stringed instrument between two frets 12a and 12b (FIGS. 1 and 2) and clamped around the neck 14. As a result, the string 10 is pressed onto the frets 12a and 12b. Then, the string length that can be used for playing is the length between the bridge of the stringed instrument and one of the two frets closest to the bridge. In the embodiment according to FIG. 2, this is frets 12b.

Capo Tasto is used, for example, to match a stringed instrument corresponding to a singing voice. Shortening the strings by Capotasto raises the pitch of the strings; The piece of music does not need to be transposed to an appropriate target key. Capo Tasto is also used to convert music into a form that is technically easy to play without having to change the pitch of the sound.

One embodiment of the capotasto according to the invention shown in FIGS. 1 to 5 and indicated by the reference numeral 16 includes a first arm 18 (string contact arm) and a second arm 20 (contact arm on the back of the neck). . The first arm 18 is suitable to be arranged on the string 10 and includes or retains the string joining region 22. The second arm 20 is suitable for being arranged on the rear face 24 of the neck 14 and includes or retains the engagement area 26 of the neck back face.

The first arm 18 is maintained to be arranged on the second arm 20 by the slide bearing 28. In the illustrated and described embodiment, the slide bearing consists of a pivot slide bearing 30, whereby the first arm 18 can be pivoted relative to the second arm 20.

The arm 20 is of a C-shape configuration with a first region 32 on which the pivot slide bearing 30 is arranged and a second region 34 on which the engagement region 26 of the back of the neck is arranged.

A displacement guide 38 extending in the linear direction 36 is arranged on the first area 32. When the capo tasto is mounted, the displacement guide 38 is oriented in the transverse direction, in particular at least almost perpendicular to the string 10 (see FIG. 3).

At least in the region of the displacement guide 38, the second arm 20 has an inner space 40 which covers the outer face at one face (FIG. 4). This interior space is open towards the other side 42. At face 42, the second arm 20 has an outline 44 that is at least approximately parallel to the linear direction 36. As detailed below, a second contact surface 46 to the first arm 18 is formed by this contour 44.

The displacement guide 38 is formed by successive slots 48 formed in alignment with one another on the wall 50 defining the interior space 40 in plane. Slot 48 has an opening direction 51 (FIGS. 5 and 7). The slot 48 is not limited by the material in the opening direction. The opening direction 51 faces the outer space.

The second region 34 is arranged at an angle with respect to the first region 32. The second arm 20 has a curved shape at the transition from the first region 32 to the second region 34. The opposing faces 52a, 52b of the second arm 20 are substantially flat in configuration and parallel to each other. The engagement region 26 at the back of the neck is formed by an elastic structure, such as, for example, an elastic pad 54, the pad being secured near the front end of the second region 34 of the second arm 20. .

In the illustrated embodiment, the elastic pad 54 has a triangular cross-sectional shape with a rounded-off tip in the direction of the current engaging region 22 when no pressing force is applied thereon.

The first arm 18 has an approximately large L shape. It is connected to the second arm 20 by the coupling region 56. Coupling region 56 is a fork shaped structure having a first fork element 58a and a second fork element 58b (FIG. 4). The first fork element 58a and the second fork element 58b are spaced apart with an intermediate space 60 therebetween. The second arm 20 extends into the intermediate space 60, and the first fork element 58a and the second fork element 58b surround the second arm 20 on faces 52a and 52b.

The pin element 62 is fixed to the first fork element 58a and the second fork element 58b. It passes through the slot 48 of the second arm 20. The passing direction is parallel to the opening direction 51. The pin element 62 is displaceable in the displacement guide 38 in the direction / counter direction 64. In this way, the first arm 18 is displaceable with respect to the second arm 20. The displacement direction 64 lies in the transverse direction, for example perpendicular to the opening direction 51. The longitudinal longitudinal direction of the fin element 62 lies at least substantially parallel to the opening direction 51.

The pin element 62 is rotatably fixed or rotatably fixed in the coupling region 56 of the first arm 18. It is guided with this play in the displacement guide 38 so as to be rotatable therein. The pin element 62 thereby forms the shaft 66 of the pivot slide bearing 30, whereby the first arm 18 is pivotable about the second arm 20 about the pivot axis 68. . Pivot axis 68 lies perpendicular to direction / opposite direction 64 (ie, perpendicular to linear direction 36). The pivot axis 68 preferably lies parallel to the opening direction 51.

A spring mechanism 70 is arranged on the first arm 18 and the second arm 20. It includes a spiral spring 72 supported on the first arm 18 and the second arm 20. Spiral spring 72 includes a spring winding 74 arranged around pin element 62 on second arm 20. The inner diameter of the spring winding 74 is larger than the outer diameter of the pin element 62. This allows the helical spring 72 to be loosely held on the fin element 62.

The spring region 76 extends from the last winding involved to the fixed region 78 of the first arm 18. This spring region 76 is firmly fixed to the fixed region 78.

The spring arm 80 passes from the first winding to the second arm 20 and is "loose" supported in the interior space 40. This support is such that the displaceability of the first arm 18 is not disturbed by the spring mechanism 70, that is, the spring arm 80 is displaceable in the interior space 40. However, the spring arm 80 is permanently supported by the second arm 20 so that spring force can be applied to the first arm 18.

The spring force of the spring mechanism 70 attempts to move the first arm 18 away from the second arm 20, ie to extend the spacing between the string engaging region 22 and the engaging region 26 at the back of the neck. It works in a way.

The first arm 18 has an upper face 82, which is formed at or near the first hollow region 84 and at or near the front end 88. Two hollow areas 86. The first hollow area 84 acts as a mating surface for the user's finger when the capo tasto 16 is secured to the neck 14. The second hollow area 86 acts as a mating surface for the user's finger when the capo testo 16 is released from the locked position.

The upper face 82 of the first arm 18 is of a smooth configuration. In the direction towards the joining region 26 at the back of the neck, the first arm 18 is of channel configuration with side rims 92a and 92b extending upwards, with an intermediate space 94 between the rims, It is open toward the engagement area 26 at the back of the neck.

The rocker 90 is pivotally arranged on the first arm 18. For this purpose, a pin element 96 extending through the intermediate space 94 is fixed to the side rims 92a and 92b. The rocker 90 rests on this pin element 96.

The pin element 96 forms the (outer) shaft of the pivot bearing 98. Pivot axis 100 of pivot bearing 98 is parallel to pivot axis 68 of pivot slide bearing 30.

The string engaging region 22 is eventually arranged in the rocker 90. This is the width that can extend across all strings of the fingerboard of the corresponding string instrument.

Facing the inside of the first arm 18, the rocker 90 is a configuration in which the pivoting motion is possible within a certain angular range, eg, from −5 ° to + 5 °.

The rocker 90 has a front end 102 extending over the front end 88 of the first arm 18.

A first contact surface 104 is arranged on the first arm 18 that works with the second contact surface 46 to lock the fixed position of the capotasto 16 in the neck 14. 104 and a second contact surface 46 may be provided; for example, such multiple contact surfaces are created by providing a partial area. For simplicity, one contact surface is always mentioned below; May be a multi-component configuration).

The opening direction 51 is oriented parallel to the first contact surface 104 and the second contact surface 46.

The first contact surface 104 is formed in the coupling region 56 between the first fork element 58a and the second fork element 58b. The second arm 20 having the second contact surface 46 extends into the intermediate space 60 according to the displacement position of the first arm 18, and the first contact surface 104 extends into the second contact surface 46. ).

The first contact surface 104 and the second contact surface 46 are each integrally formed with the associated arms 18, 20, respectively. They are formed on contours facing other arms. After the outer portion 44 of the second arm 20 is formed, on which the second contact surface 46 is formed, the first contact surface 104 is formed, facing the boundary surface of the intermediate space 60. In a corresponding manner, the contour of the first arm 18 faces the coupling region 56 of the contour 44 of the second arm 20.

The first arm 18 and the second arm 20 are made of plastic material, for example. The rocker 90 is also made of plastic material.

In the embodiment shown in FIGS. 6 and 7, the string engaging region 22 is configured as an elastic pad 106. In particular, it is made in one piece. This elastic pad 106 is arranged on the rocker 90. Elastic pad 106 has a mating surface 108 for string 10 acting on string 10. The engagement surface 108 changes its configuration in the direction 110 transverse to the string 10: The engagement surface 108 increases in size as it moves away from the pivot slide bearing 30. For example, the elastic pad 106 has a free space 112 that is triangular in configuration for this purpose. Therefore, the elastic pad 106 has a first face 114a (flank) and a second face 114b, with a free space 112 therebetween. The free space 112 does not have any joining area for the string 10. The first side 114a and the second side 114b are connected by the bridge element 116 in the region of the front end 102 of the rocker 90.

The elastic pad 106 has wedge shaped recesses over the free space 112. This shortens the contact area of the string 10 of the string joining region 22.

The neck 14 of a stringed instrument is often curved. This curved surface can be compensated transversely to the string 10 by the elastic pad 106.

The instrument is tied with strings of varying thickness. Thicker strings produce lower notes, thinner strings produce higher notes. This difference gives rise to different effective engagement surfaces and can be compensated for in the capo tasto 16 by the formation of the engagement surface 108 having various configurations. The effective engagement surface of the string on the elastic pad 106 results in the product of the contact length of the corresponding string 10 on the pad 106 and the diameter of the corresponding string 10. The contact length on the pad can be shortened by the free space 112 as the mating surface decreases in size in the direction 110. This allows the effective engagement surfaces of all strings to be made to at least approximately coincide with each other. For thin strings farther from the pivot slide bearing 30, the diameter is really smaller, but the contact length on the elastic pad 106 is longer. For a string closer to the pivot slide bearing 30 (low pitch string) the diameter is larger and the contact length is shorter due to the free space 112.

This causes all strings 10 to dig into the elastic pad 106 at a uniform depth. In particular, this prevents thinner strings from penetrating deeper into the elastic pad 106 than thicker strings, which can cause thicker strings to deviate laterally during performance.

The engagement region 26 at the back of the neck is formed, for example, by an elastic pad 118 pressed on the second arm 20 and in, for example, the region 120 (FIG. 6) that is caught therein. . Elastic pad 118 is additionally connected to the second arm 20 by an adhesive, for example. It preferably extends over the entire area 122 of the second arm 20, which may come into contact with the neck 14 of the stringed instrument.

In other respects, the first arm 18 and the second arm 20 are configured in the same manner as described above.

Capotesto in accordance with the present invention operates as follows:

When the pin element 62 as shown in FIG. 1 is pushed up, the string joining region 22 is spaced farthest from the joining region 26 at the back of the neck. The spring force of the spring mechanism 70 pivots around the pivot axis 68 away from the second arm 20 until the intermediate space 60 and the confined surface are adjacent to the upper region of the contour 44. The first arm 18 in the direction. The capo testo 16 then has a maximum opening width, which can be easily mounted to the neck 14 of the stringed instrument.

In this case, one-handed operation is possible.

Capo Tasto 16 is mounted on a string instrument such that thicker strings (low pitch strings) are closer to pivot slide bearing 30 and thinner strings (high pitch strings) are further away. This ensures that the contact length of the corresponding string on the elastic pad 106 behaves at least almost reciprocally with respect to the diameter of the corresponding string 10.

Next, the user presses the arm 18 in the displacement guide 38 in the direction / opposite direction 64, whereby the string engaging region 22 is displaced towards the engaging region 26 at the back of the neck.

The easiest way to do this is to force the second arm 20 to be held on its underside with one or more fingers and to allow the user to displace it in the first hollow area 84 on the first arm 18 with the thumb. will be.

In this way, the user applies pressure to the first arm 18. Press down on string (10). No additional pivot movement takes place.

The at least nearly perpendicular orientation of the displacement guide 38 relative to the string 10 allows for uniform pressure on all strings 10. In principle, evenly, the string is pressed uniformly on all the strings 10 on the frets 12a, 12b because no pivoting motion occurs, causing the different strings to be subjected to pressures of different strengths.

The fixation is released by the user, for example, by pressing the thumb against the second hollow area 86. At the same time, the user applies tension to the second arm 20 from below. Because of the elastic configuration of the engagement region 26 at the back of the neck, the fixation can be released and the arm 18 is upwardly directed at the second arm 20 in the displacement guide 38 by the spring force of the spring mechanism 70. Pushed to

As mentioned above, fixation and locking are possible with one hand.

If too large clamping pressure is selected or if the position of the fixed capo testo 16 must be changed, the rat can release it without changing the hand grip. Only the thumb must then be moved from the first hollow region 84 to the second hollow region 86. The pivotable bearing of the first arm 18 on the spring mechanism 70 and the second arm 20 is suitable for simple mounting / dismounting of the capotasto 16 at the neck 14. Providing a slide- "only" bearing and providing the first contact surface 104 and the second contact surface 46 are sufficient for the fixed holding of the capotasto 16 in the neck 14.

When the capo testo 16 is held under pressure at the neck 14, the first contact surface 104 is pressed against the second contact surface 46 and the locked position is fixed. No other aids, such as screws, are needed to fix this locked position. The locking of the locked position occurs from the parallel orientation of the opening direction 51 with respect to the first contact surface 104 and the second contact surface 46. When a larger clamping force (tightening force on string 10) is to be applied, the first arm 18 can be further displaced in the displacement guide 38. Therefore, tightening force distribution is possible. The separation movement of the first arm 18 and the second arm 20 is locked by the first contact surface 104 and the second contact surface 46 in only one direction, which is the engagement of the string engaging region 22 with the back of the neck. Spacing the region 46 is widened. In the opposite direction, additional mobility is possible to increase the tightening force (by applying force).

The clamping pressure may be evenly distributed on the string 10 by the rocker 90 with the string engaging region 22 arranged thereon. In particular, for this purpose, a pin element 96 forming a shaft for the rocker 90 is arranged at the center of the rocker 90 such that a uniform distribution of the clamping pressure is possible.

As a result, the solution according to the invention no longer needs to be correctly arranged at the string 10. (Kapotasto, known in the art, requires precise mounting of the strings, and if not correctly mounted, the pressure distribution on the strings is very different. Escape and the pressure of the other strings is too low, causing the corresponding string to ring).

With the solution according to the invention, a larger pressure range is available to the user before the string 10 is acoustically out of pitch.

In principle, it is true that different string instruments have different fret lengths. Since applying a uniform pressure on the string 10 can be achieved with the solution according to the invention, there is no need to adjust the clamping width to the individual fret length. This means that capo tasto 16 can generally be used.

The clamping pressure at which the string engaging region 22 acts on the string 10 can be individually set by the user.

Claims (31)

In capo tasto for fixing to the neck 14 of a stringed instrument,
A first arm 18 in which a string engaging region 22 is arranged,
A second arm 20 arranged with a joining region 26 for a neck rear side 24,
The first arm 18 is retained for displacement on the second arm 20 and includes at least one groove 51 or at least one slot in an opening direction transverse to the displacement direction 64. a slide bearing 28; 30 having a displacement guide 38 formed by a slot 48,
One or more first contact surfaces 104 formed on the first arm 18,
One or more second contact surfaces 46 formed on the second arm 20
Including,
Movability of the first arm 18 and the second arm 20 to widen the gap between the string engaging region 22 and the neck back engaging region 26 is determined by the one or more first contact surfaces 104. Capo tasto, which may be locked by contact of the at least one second contact surface (46), wherein the opening direction is at least substantially parallel to the first contact surface and oriented at least substantially parallel to the second contact surface (46). The method of claim 1, wherein the at least one first contact surface 104 and the at least one second contact surface 46 are such that the movable portion is locked when the capotasto 16 is clamped to the neck 14 upon contact. Capo Tasuto characterized by consisting. 3. The movable device of claim 1, wherein the at least one first contact surface 104 and the at least one second contact surface 46 move away from the first arm 18 and the second arm 20. Capotesto, characterized in that it is configured to be movable relative to each other in the opposite direction (movability). 4. Capo tasto according to claim 1, wherein the displacement guide is a linear guide. 5. 5. Capo tasto according to claim 1, wherein the at least one second contact surface (46) is at least substantially parallel to the displacement guide (38). 6. Capo tasto according to any one of the preceding claims, characterized in that the first arm (18) is guided by one or more pin elements (62) on the displacement guide (38). 7. The slide bearing (28) according to claim 1, wherein the slide bearing (28) consists of a pivot slide bearing (30), and the first arm (18) is pivotable relative to the second arm (20). Capo tasto, characterized in that. Capo tasto according to claim 7, characterized in that the pivot axis (68) is oriented perpendicular to the displacement direction (64). 9. Capo according to claim 7 or 8, characterized in that the pivot slide bearing (30) has a shaft (66) guided for displacement in the displacement guide (38) and rotatable in the displacement guide (38). Tasto. 10. The displacement guide (38) according to any of the preceding claims, characterized in that the displacement guide (38) is oriented at least substantially perpendicular to the string (10) when the capotasto is mounted to the neck (14). To do, capo tasto. 11. A pivotable rocker 90, according to any of the preceding claims, wherein the pivotable rocker 90 overlies the string engaging region 22 is arranged on the first arm 18. Capo Tasto. 12. The pivot axis (100) of the rocker (90) is parallel to the pivot axis (68) of the pivot slide bearing (30), whereby the first arm (18) is driven by the second arm (20). Capo tasto, characterized in that it is mounted for pivot movement and displacement. 13. Capo tasto according to any one of the preceding claims, characterized in that the string joining area (22) is formed of an elastic material. 14. Capotesto, according to claim 13, characterized in that the string engaging region (22) is formed of an elastic pad (106). 15. The method of claim 14 wherein the elastic pad 106 has a mating surface 108 that changes transverse to the longitudinal direction of the string, wherein the mating surface 108 is larger in diameter than a smaller diameter string 10. Capo tasto, characterized in that smaller for the string (10). 16. Capo testo according to claim 15, characterized in that the elastic pad (106) has a triangular free space (112). 17. Capo tasto according to any one of the preceding claims, characterized in that the joining area (26) to the neck back (24) is formed by the elastic pad (54). 18. The device as claimed in any one of the preceding claims, wherein the first arm (18) has an upwardly extending side rim (92a, 92b) in which the string engaging region (22) is arranged. Capo tasto, characterized by having a channel-like region. 19. The capo testo according to claim 18, wherein the rocker (90) is pivotably fixed on the upwardly extending side rims (92a, 92b). 20. Capo tasto according to any one of the preceding claims, characterized in that the string engaging region (22) extends over the front end (88) of the first arm (18). 21. The method of any one of the preceding claims, wherein the spring mechanism 70 applies the force to press and / or pivot the first arm 18 away from the second arm 20. Capo tasto, characterized in that arranged between the first arm (18) and the second arm (20). Capo tasto according to claim 21, characterized in that the spring mechanism (70) is supported at the first arm (18) and the second arm (20). 23. Capotasto according to claim 21 or 22, characterized in that the spring mechanism (70) has a spring area (80) displaceable and supported above the second arm (20). 24. The wind turbine according to any one of claims 21 to 23, characterized in that the windings or several windings 74 of the spring mechanism 70 are arranged around the shaft 66 of the pivot slide bearing 30, Capo Tasto. 25. An outer contour region according to any one of the preceding claims, wherein the at least one first contact surface 104 is an outer contour region of the first arm 18 facing the second arm 20. Capotesto, characterized in that formed by). 26. The method according to any one of the preceding claims, wherein the at least one second contact surface 46 is in the contour region 44 of the second arm 20 facing the first arm 18. Capo tasto, characterized in that formed by. 27. Capo tasto according to any one of the preceding claims, characterized in that the at least one first contact surface (104) is formed integrally with the first arm (18). 28. Capotesto according to any one of the preceding claims, characterized in that the at least one second contact surface (46) is integrally formed with the second arm (20). 29. The device according to one of the preceding claims, wherein the one arm (18) is configured in the fork shape in the coupling region (56) with the other arm (20), and opposing fork elements (58a, 58b). ) Is characterized in that the binding on the other arm (20), capotasuto. 30. Capotasto according to claim 29, characterized in that at least one contact surface (104) for the other arm (20) is formed in the middle region between the fork elements (58a, 58b). 31. The one or more spring mechanisms (70) of any of claims 21-30, wherein the one or more spring mechanisms (70) have a fixed position of the neck (14) in the direction of the neck back engaging region (26). Capo tasto, characterized in that arranged and configured to be released under pressure.

Images